Music-timing device.



W. J. JAOKMAN.

MUSIC TIMING DEVICE.

APPLIOATION FILED FEB. 12, 1910.

Patented May 2, 1911.

11-1: mamas PETERS co, wAsI-uuaruu, n. c.

WILLIAM J'. JACKMAN, OE CLEVELAND, OHIO.

MUSIC-TIMING- DEVICE.

Specification of Letters Patent.

Patented May 2, 1911.,

Application filed February 12, 1910. Serial No. 543,424.

To all whom it may concern:

Be it known that I, WILLIAM J. JACK- MAN, a citizen of the United Statesof America, residing at Cleveland, in the county of Ouyahoga and Stateof Ohio, have in vented certain new and useful improvements inMusic-Timing Devices; and I hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in devices for determining timein music.

The object of this invention is to provide a device by means of whichthe relative length of the time to be given notes in music may bemechanically indicated.

My invention, therefore, consists in pro viding a device capable ofgiving out a series of sounds and having such an arrangement of parts.that the interval between the sounds can be arranged to correspond tothe interval of time which should be between the striking of or soundingof a series of notes in a piece of music.

A further object of my invention is to provide a device of thischaracter which will be simple in construction and accurate inoperation.

My invention also consists in the features of construction andcombination of parts as described in the specification, pointed out inthe claims and illustrated in the accompanying drawings.

In general my device comprises a rotatable member which is provided witha series of pins which are arranged in a circle and are mounted so as toslide freely through said member so that they may be caused to projectbeyond either face thereof. In proximity to said pin carrying member isarranged a rotatable index or scale carrying member which is preferablyprovided with three index strips, either of which may be brought intothe proper position by rotating the said member and the arrangement ofthe strips is such that when the pins on the pin carrying member arecaused to project beyond the face of the pin carrying member adjacent tothe index member the sa d pins will extend over the strips on said indexmember. A resilient finger is supported in proximity to the index memberand arranged so that it will come in contact with such pins as have beencaused to project over the scales on the index member and when the pincarrying member is rotated a slight clicking or tapping will be producedby the contact of such pins with the resilient finger.

Referring to the accompanying drawings Figure 1 is a top plan of myinvention. Fig. 2 is a side view of the same. Fig. 3 is a section online 38, Fig. 2. Fig. 4 is a section on line 4ct, Fig. 3. Figs. 5, 6 and7 show the index cards or strips which are carried by the index member.

Again referring to the drawings 7 repre sents the base of my device onwhich are arranged two small standards 8 and 9. In bearings 10 and 11 inthe standards 8 and 9 is rotatably mounted a short shaft 14. On theshaft 14 is mounted the pin carrying member which consists of a circularshaped body or flanged disk 15 which is rigidly secured to the shaft 14Lso as to turn therewith. On the disk 15 near the periphery thereof arearranged a series of pins 17 so that they are free to slide in theirmountings and the said pins 17 are made sufliciently long so that bysliding them through their mountin s the can be caused to ro'ect beyondeither face of the said disk 15. On the shaft 14 adjacent to the disk 15is rotatably mounted the index carrying member which comprises acircular shaped body or flanged disk 19 which is provided with a hub 20which extends out through the bearing 10 in the standard 8 and on theouter end of said hub 20 is secured a collar 21 by means of which thehub may be rotated when'it is desired to bring the index cards orstrips, hereinafter mentioned, on the index member into their properposition, as will be more fully explained. On the standard 8 is mounteda spring controlled latch 22 which is arranged to engage with the disk19 so as to hold it against rotation when desired.

On the periphery of the disk 19 are arranged three index cards or strips25, 26

and 27. The divisions on said index strips,

as shown in Figs. 5, 6 and 7, are practically Y the same, but the indexstrip 25 is used when the shortest note in the bar of music is asixty-fourth note, the index strip 26 is used when the shortest note inthe bar of music is a thirty-second note and the index strip 27 ber issuch that when the pins on the pin carrying member are caused to projectbeyond the face of the pin carrying member adjacent to the index memberthe said pins will extend across the said index strips. The standard 9is provided with a horizontally arranged arm 28 to which is se cured aresilient finger 29, the arrangement being such that when the pins 17are shoved through the disk 15 so as to project over the index member 19and the disk 15 rotated the said pins 17 will come in contact with theresilient finger 29 producing a clicking or tapping sound. The peripheryof the disk 15 is preferably corrugated or notched and on the base 7 ismounted a spring plate 30, the free end of which is adapted to enter thenotches on the disk 15 thereby normally holding the disk againstrotation. On the end of the shaft 1% is ar 'anged a small wheel 31 whichmay be driven by a belt connected with a suitable motor, (not shown) ormay be rotated by hand.

As before remarked the index strip 25 on the index member 19 is to beused when the shortest note in the bar of music is a sixtyfourth noteand on this index strip the first graduation is equal to a sixty-fourthnote or the distance between any two of the pins 17 on the member 15.The distance between the starting point and the second graduation isequal to a thirtysecond note being twice as long as the firstgraduation. The distance between the starting point and the thirdgraduation is equal to a sixteenth note being twice as long as thesecond graduation. The distance between the starting point and thefourth graduation is equal to an eighth note being twice as long as thethird graduation. The distance between the starting point and the fifthgraduation is equal to a fourth note being twice as long as the fourthgraduation. The distance between the sixth graduation and the startingpoint is equal to a half note being twice as long as the fifthgraduation. The index strip 25 is used when the smallest note in the baris a thirtysecond note, and the graduations on this strip represent athirty-second note, a sixteenth note, an eighth note, a quarter note anda half note. The index strip 26 is used when the shortest note in thebar is a sixteenth note and the graduations on this strip represent asixteenth note, an eighth note, a quarter note and a. half note.

The operation of my device will now be explained. \Vhen it is desired todetermine or mechanically indicate the time to a bar or number of barsof music with my device the disk 19 is rotated on the shaft 14 bringingthe required index strip in to position where it can be readily seen.The latch 22 serves to keep the said disk 19 from rotating therebyholding the index strip in the proper position. One of the pins 17 onthe disk 15 is then pushed through so as to extend over the startingpoint of the index strip. The disk 15 is then rotated until the saidextended pin is brought over the gra duation on the index strip whichcorresponds to the first note in the bar of music. The pin 17 which thenregisters with the starting point of the said index strip is then shovedout over the said starting point and the disk 15 is again rotated untilthe said second extended pin is brought over the graduation on the saidindex strip which corresponds to the second note in the bar of music andthe pin which registers with the starting point of the index strip isshoved out over the starting point. The operation is repeated until apin for each note in the bar of music is extended over the index strip.\Vhen a pin for each note in the bar or bars of music has been extendedover the said index strip the disk 15 is rotated and during the rotationthereof the extended pins engage the upper end of the spring orresilient finger producing a clicking or tapping sound and the intervalbetween the taps will be the proper interval which should be allowedbetween the sounding of the notes when played on an instrument.

hat I claim is,--

1. In a device of the character described, a rotary member adapted to bedriven at uniform speed, shiftable elements carried thereby andcooperatively associated with a fixed element for successivelyindicating a series of unequal time intervals, as said member revolves,and measuring means for determining the length of said intervals, suchmeans comprising a scale carrying member mounted concentric with saidrotary member, said members being capable of relative rotary movement.

2. In a device of the character indicated, a support, a disk rotatablymounted on said support, an index bearing member arranged in proximityto said disk, a plurality of pins slidably mounted 011 said disk andcapable of being shifted so as to extend a predetermined distance beyondsaid disk and a resilient member mounted in proximity to said disk so asto lie in the path of the said pins when they have been shifted so as toextend a predetermined distance beyond said disk, and to snap from oneto another, as said disk is rotated.

3. In a device of the character indicated, a support, a disk rotatablymounted on said support, an index bearing member arranged in proximityto said disk, a plurality of pins slidably mounted on said disk andcapable of being shifted so as to extend over the index-bearing memberand a resilient member mounted in proximity to said disk so as to lie inthe path of said pins when they have been shifted so as to extend oversaid index bearing member.

1. In a device of the character indicated,

a support, a disk rotatably mounted on said support, an index bearingmember rotatably mounted in proximity to said disk, a plurality of indexstrips arranged on said member, a plurality of pins slidably mounted onsaid disk and capable of being shifted so as to extend over said indexbearing member and a resilient member mounted in proximity to said diskso as to lie in the path of said pins which have been extended over saidindex bearing member When the said disk is rotated.

5. In a device of the character indicated, a support, a disk rotatablymounted on said support, a friction device arranged to engage with saiddisk to retard the movement thereof, an index bearing member arranged inproximity to said disk, a plurality of pins slidably mounted on saiddisk and capable of being shifted so as to extend over the index bearingmember and a resilient member mounted in proximity to said disk so as tolie in the path of said pins When they have been shifted so as to extendover said index bearing member.

6. In a device of the character indicated, a base, standards supportedon said base, a shaft rotatably mounted in said standards, a diskrigidly mounted on said shaft, an index bearing member rotatably mountedon said shaft in close proximity to said disk, a plurality of indexstrips arranged on the periphery of said member, means for holding saidmember in any predetermined position, a plurality of pins slidablymounted in said disk adjacent the periphery thereof, said pins beingadapted to be extended over the said index bearing member and a soundingdevice mounted in proximity to said disk so as to lie in the path ofsaid pins which have been extended over said index bearing member, Whenthe said disk is rotated.

7. In a device of the character indicated, abase, standards supported onsaid base, a shaft rotatably mounted in said standards, means forrotating said shaft, a disk rigidly mounted on said shaft, a frictiondevice for retarding the movement of said disk, an index memberrotatably mounted in proximity to said disk, means for holding saidmember in any predetermined position, a plurality of index stripsarranged on the periphery of said member, a plurality of pins slidablymounted in said disk adjacent the periphery thereof, said pins beingadapted to be extended over the said index bearing member and a soundingdevice mounted in proximity to said disk so as to lie in the path ofsaid pins which have been extended over said index bearing member, whenthe said disk is rotated.

In testimony whereof, I sign the fore going specification, in thepresence of tWo Witnesses.

IVILLIAM J. J ACKMAN.

WVitnesses:

VICTOR C. LYNCH, N. L. MoDoxNELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

